Deficiency is the state of being insufficient; a lack; a shortage.
adult lactase d. Adult deficiency of the intestinal enzyme lactase, causing milk
intolerance and malabsorption.
antitrypsin d. Hereditary disorder that in its severe form is frequently associated with emphysema.
glucose-6-phosphate dehydrogenase d. An X-linked genetic deficiency causing a variety of hemolytic anemias, including severe reactions upon ingestion of fava beans .
hypoxanthine phosphoribosyltranspherase d. Inherited metabolic disorder
occurring in two forms: complete HPRT, characterized by excessive uric acid in the blood, self-mutilation, abnormal involuntary movements, spasticity, and mental retardation; partial HPRT, associated with hyperuricemia but no central nervous system involvement.
immune d. See immunodeficiency.
mental d. See mental retardation, under retardation.
pseudocholinesterase d. Hereditary disorder manifested by an excessive reaction to drugs that are usually hydrolyzed by serum pseudocholinesterase, especially some of the agents used to achieve muscular relaxation during anesthesia, such as succinylcholine.
pyruvate kinase d. Hereditary deficiency of pyruvate kinase, causing hemolytic